Borg BL5401SSDDA Mechanical Digital Lock - DDA Compliant Lever - Fire Rated - Satin Stainless
At A Glance
At A Glance
KEY OVERRIDENot Available
DISPATCHSame Day Before 11am AEST
PIN Code Key OverrideNot Available
The Borg BL5401SSDDA is a medium-heavy duty fully mechanical digital lock in satin stainless finish with a DDA compliant AS1428.1-2009 flat bar lever. It combines accessible lever hardware with the fire-door credentials and mechanical reliability of the BL5000 series - making it the specified choice for disability access doors in commercial and institutional buildings that also require fire certification. Code entry uses a fully mechanical coding chamber with over 8,000 code combinations - a higher count than the ECP siblings.
Fire rated to AS 1905.1-2005 (up to 4 hours depending on doorset), cycle tested to 100,000+ operations, and accepts doors 35mm to 54mm thick on standard fixings. The inside lever is always free to turn - egress never requires a code. Suitable for internal and sheltered external use. For on-door code change (no lock removal) see the BL5401SSDDAECP. For coastal environments see the BL5401DDAMGPROECP (Marine Grade Pro 2, 1,000hr salt spray tested).
Estimated Warehouse Dispatch
Usually same day if ordered before 11am AEST (excludes weekends and Queensland public holidays).
Usually same day if ordered before 11am AEST (excludes weekends and Queensland public holidays).
Fire Rated - AS 1905.1-2005
Tested up to 4 hours (depending on doorset) on fire door assemblies in accordance with AS 1905.1-2005 Fire Resistant Doorsets. The fire rating applies to the lock and lever hardware in a tested doorset configuration - confirm with your door manufacturer that this lock is within their fire door assessment. See our guide to fire door certification in Australia and browse all fire door rated locks.
Tested up to 4 hours (depending on doorset) on fire door assemblies in accordance with AS 1905.1-2005 Fire Resistant Doorsets. The fire rating applies to the lock and lever hardware in a tested doorset configuration - confirm with your door manufacturer that this lock is within their fire door assessment. See our guide to fire door certification in Australia and browse all fire door rated locks.
DDA Compliant Lever - AS1428.1-2009
Flat bar lever compliant with BCA AS1428.1-2009 (Design for Access and Mobility). The flat bar profile requires less grip force and torque than a round bar or knob lever, meeting the standard for accessible lever hardware. Appropriate for disability access doors, accessible toilet facilities, and any application where BCA accessibility compliance is required for the locking hardware. Lever compliance relates to the handle design only - it does not imply full building access compliance for the installation. See our guide to DDA smart locks for NDIS and disability housing, the Buyer's Guide Chapter 09 DDA section, and the AS1428 coverage in Chapter 11.
Flat bar lever compliant with BCA AS1428.1-2009 (Design for Access and Mobility). The flat bar profile requires less grip force and torque than a round bar or knob lever, meeting the standard for accessible lever hardware. Appropriate for disability access doors, accessible toilet facilities, and any application where BCA accessibility compliance is required for the locking hardware. Lever compliance relates to the handle design only - it does not imply full building access compliance for the installation. See our guide to DDA smart locks for NDIS and disability housing, the Buyer's Guide Chapter 09 DDA section, and the AS1428 coverage in Chapter 11.
Not Suitable for Coastal or Saline Environments
Satin stainless finish is rated for internal and sheltered external use only - not for direct coastal or salt air exposure. For coastal environments within approximately 1km of salt water, specify the BL5401DDAMGPROECP (Marine Grade Pro 2, 316 stainless internals, 1,000hr salt spray tested). See MG Pro salt spray ratings explained.
Satin stainless finish is rated for internal and sheltered external use only - not for direct coastal or salt air exposure. For coastal environments within approximately 1km of salt water, specify the BL5401DDAMGPROECP (Marine Grade Pro 2, 316 stainless internals, 1,000hr salt spray tested). See MG Pro salt spray ratings explained.
Code Change Requires Lock Removal - Tumbler System
To change the PIN, the lock must be removed from the door. Remove the 4 red screws, lift the cover plate carefully (springs attached), hold the C tumbler depressed, and use the supplied tweezers to reposition red coded and blue uncoded tumblers. All square cut-outs must face outward and coloured marks face upward. Over 8,000 combinations; code length adjustable 3-7 digits with spare tumblers provided. Full step-by-step at Borg Standard Chambers code change and the bench method procedure. For on-door code change, see the BL5401SSDDAECP.
To change the PIN, the lock must be removed from the door. Remove the 4 red screws, lift the cover plate carefully (springs attached), hold the C tumbler depressed, and use the supplied tweezers to reposition red coded and blue uncoded tumblers. All square cut-outs must face outward and coloured marks face upward. Over 8,000 combinations; code length adjustable 3-7 digits with spare tumblers provided. Full step-by-step at Borg Standard Chambers code change and the bench method procedure. For on-door code change, see the BL5401SSDDAECP.
Free Passage Function (F Button)
Enter the correct code, rotate the lever, then press F while the lever is still rotating. The lever becomes free-turning without further code entry. To exit free passage: rotate the lever and press C until an audible click is heard. The free passage function can be permanently deactivated by inserting the supplied plug before installation - recommended on fire doors where self-latching must not be disabled. See passage mode vs holdback mode explained.
Enter the correct code, rotate the lever, then press F while the lever is still rotating. The lever becomes free-turning without further code entry. To exit free passage: rotate the lever and press C until an audible click is heard. The free passage function can be permanently deactivated by inserting the supplied plug before installation - recommended on fire doors where self-latching must not be disabled. See passage mode vs holdback mode explained.
Fully Mechanical - No Batteries Required
Entirely mechanical. No power source, no wiring, and no battery maintenance at any point. This is a genuine operational advantage on disability access doors in healthcare and institutional settings where power reliability must not be a factor. See What Is a Mechanical Digital Lock? and browse all Digital Mechanical Locks.
Entirely mechanical. No power source, no wiring, and no battery maintenance at any point. This is a genuine operational advantage on disability access doors in healthcare and institutional settings where power reliability must not be a factor. See What Is a Mechanical Digital Lock? and browse all Digital Mechanical Locks.
Designed for medium to heavy usage - fire door and DDA applications
100,000-cycle rating, AS1428.1 lever compliance, and AS1905.1 fire certification make this the workhorse specification for disability access fire doors in commercial and institutional buildings.
100,000-cycle rating, AS1428.1 lever compliance, and AS1905.1 fire certification make this the workhorse specification for disability access fire doors in commercial and institutional buildings.
Not suitable for extremely high traffic or frequent code changes without a service plan
For maximum heavy duty and higher cycle ratings consider the Carbine CDL7100SC (DDA rear lever, salt spray C7, 100k cycle). For frequent code change see the BL5401SSDDAECP.
For maximum heavy duty and higher cycle ratings consider the Carbine CDL7100SC (DDA rear lever, salt spray C7, 100k cycle). For frequent code change see the BL5401SSDDAECP.
Single PIN Code Only
Like all Borg standard-chamber mechanical digital locks, the BL5401SSDDA accepts one active PIN code at a time. There is no user management, access history, or multiple credential support. See mechanical digital lock limitations explained.
Like all Borg standard-chamber mechanical digital locks, the BL5401SSDDA accepts one active PIN code at a time. There is no user management, access history, or multiple credential support. See mechanical digital lock limitations explained.
Key Features
- DDA compliant flat bar lever - AS1428.1-2009; suitable for disability access, accessible toilet facilities, and BCA-compliant applications. Browse all fire door rated locks.
- Over 8,000 code combinations; code length adjustable from 3 to 7 digits using spare tumblers supplied - the higher combination count of the tumbler system compared to the ECP siblings (1,000+).
- Fire rated to AS 1905.1-2005 (up to 4 hours depending on doorset).
- Fully mechanical - no batteries, no wiring, no power source at any point in the product's lifetime.
- Satin stainless finish - suitable for internal and sheltered external use; not for direct coastal or saline environments.
- Clutching external lever - free-turning until correct code entered; inside DDA lever always free for immediate egress without a code.
- Optional free passage function (F button) - permanently deactivatable with supplied plug; plug in before installation for fire door compliance.
- 60mm anti-thrust stainless steel tubular latch; 12mm bolt projection - reduces risk of forced entry via latch depression.
- 8mm square drive spindle - compatible with most leading lock brands and mortice lock cases.
- Door thickness 35mm to 54mm on standard fixings (ECP siblings extend to 80mm with optional XL kit).
- Cycle tested to 100,000+ operations.
- Reversible on site for left or right hand doors without special tools.
- Codes are non-sequential - 1234 can be entered in any order; see any-order codes explained.
Access Methods
App / Bluetooth
What's in the Box
- 1 x BL5401 SS DDA outside keypad and DDA flat bar lever assembly (satin stainless)
- 1 x inside DDA flat bar lever handle assembly (satin stainless)
- 1 x 60mm anti-thrust stainless steel tubular latch (12mm bolt projection)
- 1 x strike plate and box keep
- 2 x spindles (80mm and 90mm)
- M4 stainless steel fixing screws (40mm, 50mm, 60mm options)
- 4 x 16mm screws
- 2 x coded tumblers (red - spare for code length adjustment)
- 2 x non-coded tumblers (blue - spare)
- 1 x tweezers (for code change)
- 1 x hex wrench (Allen key)
- 1 x handle screw rubber grommet
Borg BL5000 series - 60mm anti-thrust stainless steel tubular latch (included)
Suitable Uses
- Disability access doors, accessible toilet facilities, and amenity rooms requiring BCA AS1428.1 compliant lever hardware in commercial, strata, institutional, and healthcare buildings
- Fire-rated door assemblies requiring AS1428.1 compliant lever hardware - the only product in this family combining both ratings in one unit
- NDIS SDA (Specialist Disability Accommodation) properties requiring BCA-compliant accessible hardware; see our DDA range guide for NDIS
- Applications where the higher combination count of the tumbler system (8,000+) is preferred over on-door code change - for example, where the code is set at commissioning and rarely changed
- Internal commercial doors, storerooms, amenity rooms, and server rooms on timber or composite doors 35-54mm thick
- Applications specified under the Digital Mechanical Locks category; also browse the PIN Code locks range
Available Finish Options
Satin Stainless
(This Product)
STK BL5401SSDDA
Single finish. For the coastal Marine Grade Pro DDA option (black), see the BL5401DDAMGPROECP. Finish does not affect DDA compliance, fire rating, or mechanical performance.
Borg BL5401 DDA Series - Product Family
All BL5401 DDA models use the AS1428.1-2009 compliant flat bar DDA lever and are fully mechanical with no batteries. All full-lock models are fire rated to AS 1905.1-2005 (up to 4 hours depending on doorset). See the MG Pro and ECP guide to understand the grade and code-change differences. For spare keypads see the Accessories and Spare Parts table below.
ECP = Easicode Pro on-door code change (~30 seconds). MG Pro 2 = Marine Grade Pro 2 - 316SS internals - 1,000hr salt spray tested. Keypad-only models require a compatible latch and inside handle sourced separately. The BL5401SSDDA door range is 35-54mm; ECP models extend to 80mm with XL fixing kit.
Accessories and Spare Parts
The BL5401SSDDA sits on the BL5000-series service-part platform. Spare DDA keypad-only units are available for replacement or retrofit installations. The BLSFTUMBLER spare F tumbler suits all BL5000-series models. See our blog post on code change spare parts and why spare parts availability matters.
Spare Keypad Note - BL5401KSSDDA vs BL5401KSSDDAECP
The BL5401KSSDDA is the direct like-for-like spare keypad for this product - same tumbler system, same code-change method. The BL5401KSSDDAECP upgrades the install to ECP (on-door code change in ~30 seconds) but carries a lower combination count (1,000+ vs 8,000+). Both are compatible with the BL5401 lock body and latch; confirm the lock body condition before ordering a keypad-only replacement.
The BL5401KSSDDA is the direct like-for-like spare keypad for this product - same tumbler system, same code-change method. The BL5401KSSDDAECP upgrades the install to ECP (on-door code change in ~30 seconds) but carries a lower combination count (1,000+ vs 8,000+). Both are compatible with the BL5401 lock body and latch; confirm the lock body condition before ordering a keypad-only replacement.
For additional BL5000-series spares and coding tumblers, see the Borg 5000 Series Spare Parts Reference (PDF). For servicing procedures, see the Borg Servicing Guide (PDF).
Full Specifications
Dimensions
BL5400 series - outside keypad and inside DDA lever handle dimensional drawing
Frequently Asked Questions
What is the DDA lever and what makes it different from a standard lever?
The BL5401SSDDA uses a flat bar lever compliant with BCA AS1428.1-2009 (Design for Access and Mobility). This lever requires significantly less grip force and torque than a round bar lever, making it suitable for users with limited hand strength or dexterity. Lever compliance relates to the handle design only - it does not imply full building access compliance for the installation. See the DDA section of Buyer's Guide Chapter 09 and AS1428 in Chapter 11.
The BL5401SSDDA uses a flat bar lever compliant with BCA AS1428.1-2009 (Design for Access and Mobility). This lever requires significantly less grip force and torque than a round bar lever, making it suitable for users with limited hand strength or dexterity. Lever compliance relates to the handle design only - it does not imply full building access compliance for the installation. See the DDA section of Buyer's Guide Chapter 09 and AS1428 in Chapter 11.
How do I change the PIN code on this lock?
The code must be changed with the lock removed from the door. Remove the 4 red screws, carefully lift the cover plate (springs attached), hold the C tumbler depressed at all times, then use the supplied tweezers to reposition red coded and blue uncoded tumblers. All square cut-outs must face outward and coloured marks must face upward. Replace the cover plate and test the new code before reinstalling. Codes are non-sequential - 1234 can be entered in any order. Full step-by-step at Borg Standard Chambers code change guide. Allow 20-40 minutes for a first code change; a trained locksmith typically takes 10-15 minutes.
The code must be changed with the lock removed from the door. Remove the 4 red screws, carefully lift the cover plate (springs attached), hold the C tumbler depressed at all times, then use the supplied tweezers to reposition red coded and blue uncoded tumblers. All square cut-outs must face outward and coloured marks must face upward. Replace the cover plate and test the new code before reinstalling. Codes are non-sequential - 1234 can be entered in any order. Full step-by-step at Borg Standard Chambers code change guide. Allow 20-40 minutes for a first code change; a trained locksmith typically takes 10-15 minutes.
Is the BL5401SSDDA certified for fire doors?
Yes - the BL5401 range is rated up to 4 hours depending on the doorset under AS 1905.1-2005. The rating applies in a tested doorset configuration. Confirm with your door manufacturer that this lock is within their fire door assessment before specifying. See our fire door certification guide and the Fire Door chapter.
Yes - the BL5401 range is rated up to 4 hours depending on the doorset under AS 1905.1-2005. The rating applies in a tested doorset configuration. Confirm with your door manufacturer that this lock is within their fire door assessment before specifying. See our fire door certification guide and the Fire Door chapter.
What is the difference between BL5401SSDDA and BL5401SSDDAECP?
Both carry the DDA flat bar lever, satin stainless finish, and fire rating. The key differences: the BL5401SSDDA uses the tumbler system (8,000+ combinations, lock removal for code change, 35-54mm doors); the BL5401SSDDAECP uses Easicode Pro (1,000+ combinations, on-door code change in ~30 seconds, extends to 80mm with XL kit). Choose BL5401SSDDA if the code is set at commissioning and rarely changed; choose BL5401SSDDAECP if code changes are a practical ongoing requirement.
Both carry the DDA flat bar lever, satin stainless finish, and fire rating. The key differences: the BL5401SSDDA uses the tumbler system (8,000+ combinations, lock removal for code change, 35-54mm doors); the BL5401SSDDAECP uses Easicode Pro (1,000+ combinations, on-door code change in ~30 seconds, extends to 80mm with XL kit). Choose BL5401SSDDA if the code is set at commissioning and rarely changed; choose BL5401SSDDAECP if code changes are a practical ongoing requirement.
Can I reverse the handing on site?
Yes. All BL5401 units are factory set for right-hand doors. To change: remove the rubber grommet at the base of the keypad handle, use the included hex wrench to remove the grub screw, rotate the handle 180 degrees and refit. Repeat for the inside handle. Handing is determined from the outside of the door: right hand = hinges on the right; left hand = hinges on the left, regardless of swing direction. No special tools beyond the included hex wrench are required.
Yes. All BL5401 units are factory set for right-hand doors. To change: remove the rubber grommet at the base of the keypad handle, use the included hex wrench to remove the grub screw, rotate the handle 180 degrees and refit. Repeat for the inside handle. Handing is determined from the outside of the door: right hand = hinges on the right; left hand = hinges on the left, regardless of swing direction. No special tools beyond the included hex wrench are required.
Additional Information
Non-ECP vs ECP - Which Should I Choose?
The BL5401SSDDA (this product) offers over 8,000 combinations but requires lock removal for code changes. If the code is set at commissioning and changed infrequently - for example, in a managed care facility where the code changes quarterly under a maintenance schedule - the higher combination count is a genuine advantage. If the code must be changed more frequently (staff turnover, temporary access), the BL5401SSDDAECP (ECP, on-door in ~30 seconds, no removal needed) is the better operational fit. See ECP explained.
The BL5401SSDDA (this product) offers over 8,000 combinations but requires lock removal for code changes. If the code is set at commissioning and changed infrequently - for example, in a managed care facility where the code changes quarterly under a maintenance schedule - the higher combination count is a genuine advantage. If the code must be changed more frequently (staff turnover, temporary access), the BL5401SSDDAECP (ECP, on-door in ~30 seconds, no removal needed) is the better operational fit. See ECP explained.
Door Thickness Limit: 35-54mm vs 35-80mm on ECP Siblings
The BL5401SSDDA is rated for doors 35-54mm thick on standard fixings. The ECP variants extend to 80mm using the optional XL fixing kit. If the door is between 55mm and 80mm, one of the ECP models is the correct specification. On doors thicker than 80mm, none of the BL5401 family is suitable without modification - contact Terry's for alternatives.
The BL5401SSDDA is rated for doors 35-54mm thick on standard fixings. The ECP variants extend to 80mm using the optional XL fixing kit. If the door is between 55mm and 80mm, one of the ECP models is the correct specification. On doors thicker than 80mm, none of the BL5401 family is suitable without modification - contact Terry's for alternatives.
Free Passage and Fire Door Compliance
The free passage function (F button) allows the lever to operate freely without a code. Never engage free passage permanently on a fire door. Fire door self-latching requirements mean the door must latch fully on closing - free passage disengages that function. The supplied plug can permanently disable the F button at installation before the lock is fitted to the door. This prevents any risk of accidental activation on a fire door. See passage mode vs holdback mode explained.
The free passage function (F button) allows the lever to operate freely without a code. Never engage free passage permanently on a fire door. Fire door self-latching requirements mean the door must latch fully on closing - free passage disengages that function. The supplied plug can permanently disable the F button at installation before the lock is fitted to the door. This prevents any risk of accidental activation on a fire door. See passage mode vs holdback mode explained.
Comparing the BL5401 DDA Against the Carbine CDL7100SC DDA
If maximum cycle rating and corrosion resistance are the priority, the Carbine CDL7100SC (salt spray C7, AS4145.2, 100k cycle, BCA rear DDA lever) is worth comparing. The CDL7100SC is heavier commercial duty, has a higher salt spray rating (C7 - 240 hours), and is suited to higher-traffic sites. Both carry fire ratings. The BL5401SSDDA is lighter duty, lower cost, and has the higher combination count (8,000+). See the DDA options in the heavy duty commercial locks guide and Chapter 16 commercial treatment.
If maximum cycle rating and corrosion resistance are the priority, the Carbine CDL7100SC (salt spray C7, AS4145.2, 100k cycle, BCA rear DDA lever) is worth comparing. The CDL7100SC is heavier commercial duty, has a higher salt spray rating (C7 - 240 hours), and is suited to higher-traffic sites. Both carry fire ratings. The BL5401SSDDA is lighter duty, lower cost, and has the higher combination count (8,000+). See the DDA options in the heavy duty commercial locks guide and Chapter 16 commercial treatment.
Spare Tumblers and Servicing
The BL5401SSDDA includes spare coded (red) and uncoded (blue) tumblers in the box. When spare tumblers run out, replacement tumbler supplies are available through Terry's. The BLSFTUMBLER F tumbler is also stocked for servicing. Tweezers and the hex wrench are available as replacements. See code change spare parts and the Borg Servicing Guide (PDF).
The BL5401SSDDA includes spare coded (red) and uncoded (blue) tumblers in the box. When spare tumblers run out, replacement tumbler supplies are available through Terry's. The BLSFTUMBLER F tumbler is also stocked for servicing. Tweezers and the hex wrench are available as replacements. See code change spare parts and the Borg Servicing Guide (PDF).
Borg Locks Warranty - 12 Months (Australia)
All Borg locks are warranted against mechanical defects in materials and workmanship under normal use and service for a minimum of 12 months from date of sale. The warranty does not cover damage arising from misuse, vandalism, or improper installation. The lock must not be dismantled - doing so will invalidate the warranty.
All Borg locks are warranted against mechanical defects in materials and workmanship under normal use and service for a minimum of 12 months from date of sale. The warranty does not cover damage arising from misuse, vandalism, or improper installation. The lock must not be dismantled - doing so will invalidate the warranty.
Purchased through Terry's Locksmiths? Contact Terry's Locksmiths first - we'll manage your warranty claim on your behalf. This warranty operates alongside your rights under the Australian Consumer Law.
Borg BL5401SSDDA - In-Depth Guide, FAQ and Owner's Manual
Everything below helps you specify, install, operate and service the BL5401SSDDA. For the full mechanical digital lock picture see Buyer's Guide Chapter 16 - Mechanical Digital Locks. For DDA and NDIS context see Chapter 09 - DDA / NDIS / Accessibility.
DDA Lever and Accessibility
What exactly does AS1428.1-2009 compliance cover on the BL5401?
AS1428.1-2009 (Design for Access and Mobility) specifies minimum requirements for the design of facilities for people with disabilities. On this product, compliance relates specifically to the lever handle design - the flat bar format requires less grip force and wrist torque than a round bar or knob. The standard specifies maximum force thresholds for operable hardware. Compliance does not extend to the keypad or code entry process, which requires finger pressure and manual dexterity. If full AS1428 compliance throughout the locking system is required, consult your accessibility consultant. See AS1428 in Buyer's Guide Chapter 11.
AS1428.1-2009 (Design for Access and Mobility) specifies minimum requirements for the design of facilities for people with disabilities. On this product, compliance relates specifically to the lever handle design - the flat bar format requires less grip force and wrist torque than a round bar or knob. The standard specifies maximum force thresholds for operable hardware. Compliance does not extend to the keypad or code entry process, which requires finger pressure and manual dexterity. If full AS1428 compliance throughout the locking system is required, consult your accessibility consultant. See AS1428 in Buyer's Guide Chapter 11.
Is the BL5401SSDDA eligible for NDIS funding?
The BL5401SSDDA may be eligible for NDIS funding under assistive technology categories where DDA-compliant door hardware is specified in a participant's plan. Eligibility depends on the participant's plan, the assessed need, and the registered provider handling the claim. Terry's Locksmiths is able to supply and install the BL5401SSDDA to NDIS participants - contact us directly to discuss. See our guide to NDIS funding for DDA hardware and the NDIS funding section of Chapter 09.
The BL5401SSDDA may be eligible for NDIS funding under assistive technology categories where DDA-compliant door hardware is specified in a participant's plan. Eligibility depends on the participant's plan, the assessed need, and the registered provider handling the claim. Terry's Locksmiths is able to supply and install the BL5401SSDDA to NDIS participants - contact us directly to discuss. See our guide to NDIS funding for DDA hardware and the NDIS funding section of Chapter 09.
Does the flat bar DDA lever meet the BCA for fire-rated disability access doors?
Yes - the BL5401SSDDA is the purpose-built combination of AS1428.1-2009 flat bar DDA lever with AS1905.1-2005 fire rating. It is designed for exactly this application. Fire rating is doorset-dependent, so always confirm with your door manufacturer that the lock is within their fire door assessment. This combination - DDA lever on a fire door - is the primary use case for the BL5401 DDA family and the principal reason to choose it over a round-bar BL5001.
Yes - the BL5401SSDDA is the purpose-built combination of AS1428.1-2009 flat bar DDA lever with AS1905.1-2005 fire rating. It is designed for exactly this application. Fire rating is doorset-dependent, so always confirm with your door manufacturer that the lock is within their fire door assessment. This combination - DDA lever on a fire door - is the primary use case for the BL5401 DDA family and the principal reason to choose it over a round-bar BL5001.
Codes and Code Change
How long does a code change take?
Realistically 20-40 minutes for a first-timer; 10-15 minutes for a trained locksmith. This is significantly more involved than the ECP siblings (~30 seconds on the door). Always set the new code at the bench and test thoroughly before reinstalling. Keep the lock removed until you have tested the new code at least five times successfully. See the full Borg standard chamber procedure and the common bench method traps to avoid.
Realistically 20-40 minutes for a first-timer; 10-15 minutes for a trained locksmith. This is significantly more involved than the ECP siblings (~30 seconds on the door). Always set the new code at the bench and test thoroughly before reinstalling. Keep the lock removed until you have tested the new code at least five times successfully. See the full Borg standard chamber procedure and the common bench method traps to avoid.
What does non-sequential mean and why does it matter for security?
The coding chamber registers only which buttons are included in the code - not the order they are pressed. So if the code is 1-3-5, pressing 5-1-3, 3-5-1 or 1-5-3 will all open the lock equally. This is by design: it means an attacker cannot infer the code by watching the sequence. It also means the 8,000+ combination count is genuinely meaningful against systematic attacks. The tradeoff: you cannot use an ordered sequence as a memory aid, since order has no effect. Choose a set of button positions that are easy to remember as a group, not as a sequence. See any-order codes explained.
The coding chamber registers only which buttons are included in the code - not the order they are pressed. So if the code is 1-3-5, pressing 5-1-3, 3-5-1 or 1-5-3 will all open the lock equally. This is by design: it means an attacker cannot infer the code by watching the sequence. It also means the 8,000+ combination count is genuinely meaningful against systematic attacks. The tradeoff: you cannot use an ordered sequence as a memory aid, since order has no effect. Choose a set of button positions that are easy to remember as a group, not as a sequence. See any-order codes explained.
What if the code is forgotten - is there a lockout recovery?
If the code is lost and cannot be recalled, the lock must be physically removed from the door by unscrewing the four red screws. This gives access to the tumbler chamber, allowing a locksmith to identify or reset the code. There is no electronic override, no manufacturer backdoor, and no app recovery - this is an inherent feature of the mechanical architecture, not a limitation. Keep a record of the code in a secure location away from the door itself. See the bench method for code recovery.
If the code is lost and cannot be recalled, the lock must be physically removed from the door by unscrewing the four red screws. This gives access to the tumbler chamber, allowing a locksmith to identify or reset the code. There is no electronic override, no manufacturer backdoor, and no app recovery - this is an inherent feature of the mechanical architecture, not a limitation. Keep a record of the code in a secure location away from the door itself. See the bench method for code recovery.
Fire Rating and Standards
What does "up to 4 hours depending on doorset" mean for the fire rating?
The BL5401 is tested in specific fire door assembly configurations (lock hardware in combination with a particular door, frame, and seals). The fire resistance level (FRL) achieved depends on which doorset the lock is installed in. The lock passes at up to 4 hours but the doorset you install it into may carry a lower FRL - the lower figure governs. Always confirm the FRL of the complete doorset with your door manufacturer before specifying for a fire door application. The Australian Standard for fire resistant doorsets is AS 1905.1-2005. See fire door types and certification in Australia and Buyer's Guide Chapter 05 - Fire Door Smart Locks.
The BL5401 is tested in specific fire door assembly configurations (lock hardware in combination with a particular door, frame, and seals). The fire resistance level (FRL) achieved depends on which doorset the lock is installed in. The lock passes at up to 4 hours but the doorset you install it into may carry a lower FRL - the lower figure governs. Always confirm the FRL of the complete doorset with your door manufacturer before specifying for a fire door application. The Australian Standard for fire resistant doorsets is AS 1905.1-2005. See fire door types and certification in Australia and Buyer's Guide Chapter 05 - Fire Door Smart Locks.
Environment and Location
Can I use this lock on an external door exposed to rain?
The BL5401SSDDA is rated for sheltered external use - protected from direct rain by a verandah, overhang, or covered walkway. It is not rated for direct rain exposure or coastal salt air. For external doors without shelter or for coastal locations, use the BL5401DDAMGPROECP (Marine Grade Pro 2, 1,000hr salt spray tested). See when MG Pro is needed.
The BL5401SSDDA is rated for sheltered external use - protected from direct rain by a verandah, overhang, or covered walkway. It is not rated for direct rain exposure or coastal salt air. For external doors without shelter or for coastal locations, use the BL5401DDAMGPROECP (Marine Grade Pro 2, 1,000hr salt spray tested). See when MG Pro is needed.
Spares and Installation
What spare parts are available and where do I get them?
The two dedicated spare keypad units are the BL5401KSSDDA (same tumbler system, like-for-like replacement) and the BL5401KSSDDAECP (ECP upgrade, on-door code change). The BLSFTUMBLER covers the F tumbler. For scar plates on retrofit installations the SPBL5001 stainless scar plates cover previous hardware footprints. All available through Terry's.
The two dedicated spare keypad units are the BL5401KSSDDA (same tumbler system, like-for-like replacement) and the BL5401KSSDDAECP (ECP upgrade, on-door code change). The BLSFTUMBLER covers the F tumbler. For scar plates on retrofit installations the SPBL5001 stainless scar plates cover previous hardware footprints. All available through Terry's.
What tools are needed to install the BL5401SSDDA?
Standard installation requires a drill, hole saw (to match the standard tubular latch and keypad bore dimensions), a screwdriver, and the included hex wrench. The drilling template guides hole positions. Handing reversal uses only the included hex wrench. Code change before installation uses the included tweezers and requires the lock off the door. No special locksmith tools are needed; competent DIY installers can complete the job with standard hand tools. A professional installation through Terry's is available on the Advice and Installation service.
Standard installation requires a drill, hole saw (to match the standard tubular latch and keypad bore dimensions), a screwdriver, and the included hex wrench. The drilling template guides hole positions. Handing reversal uses only the included hex wrench. Code change before installation uses the included tweezers and requires the lock off the door. No special locksmith tools are needed; competent DIY installers can complete the job with standard hand tools. A professional installation through Terry's is available on the Advice and Installation service.
Related Products, Guides and Chapters
BL5401 DDA family: BL5401SSDDAECP (ECP, satin stainless) - BL5401DDAMGPROECP (MG Pro coastal, ECP)
Spare keypads: BL5401KSSDDA (non-ECP DDA keypad) - BL5401KSSDDAECP (ECP DDA keypad)
DDA alternatives: Carbine CDL7100SC (heavier duty, DDA rear lever)
Buyer's Guide: Ch 09 - DDA / NDIS / Accessibility - Ch 05 - Fire Door Smart Locks - Ch 11 - Australian Standards - Ch 16 - Mechanical Digital Locks
Key blogs: DDA Smart Locks for NDIS and Disability Housing - DDA options in Heavy Duty Commercial Locks - MG Pro and ECP Explained - Changing Codes on Mechanical Digital Locks - Fire Door Types and Certification - Lockwood vs Borg vs Carbine - Passage Mode vs Holdback Mode
What's In The Box - Borg BL5401SSDDA
- 1 x BL5401 SS DDA outside keypad and DDA flat bar lever assembly (satin stainless)
- 1 x inside DDA flat bar lever handle assembly (satin stainless)
- 1 x 60mm anti-thrust stainless steel tubular latch (12mm bolt projection)
- 1 x strike plate and box keep
- 2 x spindles (80mm and 90mm)
- M4 stainless steel fixing screws (40mm, 50mm, 60mm options)
- 4 x 16mm screws
- 2 x coded tumblers (red - spare)
- 2 x non-coded tumblers (blue - spare)
- 1 x tweezers (for code change)
- 1 x hex wrench (Allen key)
- 1 x handle screw rubber grommet
Note: Code length can be set from 3 to 7 digits using the spare tumblers provided. A 70mm backset latch is available separately if required [CONFIRM SKU]. The BLSFTUMBLER spare F tumbler is available for servicing when the supplied one is used or removed.
Borg BL5401 DDA Series - Real Installations
Installed by Terry's - Palm Beach QLD
Installed by Terry's - Southport QLD
Installed by Terry's - Robina QLD
Installed by Terry's - Gold Coast QLD
Installed by Terry's - Gold Coast QLD
Supplied by Terry's, customer install - Newcastle NSW
Supplied by Terry's, customer install - Adelaide SA
Borg BL5400 Series - Dimensions
BL5400 Series - outside keypad and inside DDA lever handle dimensional drawing
Borg BL5000 Series - Product Brochure
BL5000 Series - full model range including BL5400 DDA variants, fire tested models and all dimensions
Borg Locks Warranty
Borg products sold in Australia are covered against mechanical defects in materials and workmanship under normal use and service. Warranty claims are handled by Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries.
Warranty Summary
What the Warranty Covers
- Mechanical defects in materials and workmanship
- Defects arising under normal use and service conditions
- Repair or replacement of defective units at the discretion of the Australian distributor (LSC)
What the Warranty Does Not Cover
- Damage arising from misuse, vandalism, or abuse
- Damage resulting from improper installation
- Locks that have been dismantled - dismantling invalidates the warranty
- Normal wear and tear
- Cosmetic damage not affecting function
How to Make a Claim
For full returns and warranty claim procedures, visit our Returns & Warranty page - this is kept up to date and is the authoritative reference for current claim steps.
- Contact Terry's Tradies Pty Ltd first if you purchased through us or one of its associated trading names - we will assess the issue and manage the warranty process with LSC on your behalf. You do not need to contact LSC or Borg Locks UK directly.
- Have your proof of purchase ready (receipt or order confirmation).
- Warranty claims for Borg products in Australia are processed through LSC, the authorised Australian importer and distributor. Where an item is returned to LSC, freight charges must be prepaid and the item returned within the warranty period.
- If LSC finds the returned item to be defective, it will be repaired or replaced, and a detailed assessment report is provided to the customer after examination.
Australian Consumer Law
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. The Borg manufacturer warranty above operates alongside - and does not limit - these statutory rights.
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. The Borg manufacturer warranty above operates alongside - and does not limit - these statutory rights.
Confused? Overwhelmed? We get it.
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